agppriv.h revision 173203
1281526Sandrew/*- 2281526Sandrew * Copyright (c) 2000 Doug Rabson 3281526Sandrew * All rights reserved. 4281526Sandrew * 5281526Sandrew * Redistribution and use in source and binary forms, with or without 6281526Sandrew * modification, are permitted provided that the following conditions 7281526Sandrew * are met: 8281526Sandrew * 1. Redistributions of source code must retain the above copyright 9281526Sandrew * notice, this list of conditions and the following disclaimer. 10281526Sandrew * 2. Redistributions in binary form must reproduce the above copyright 11281526Sandrew * notice, this list of conditions and the following disclaimer in the 12281526Sandrew * documentation and/or other materials provided with the distribution. 13281526Sandrew * 14281526Sandrew * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15281526Sandrew * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16281526Sandrew * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17281526Sandrew * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18281526Sandrew * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19281526Sandrew * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20281526Sandrew * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21281526Sandrew * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22281526Sandrew * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23281526Sandrew * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24281526Sandrew * SUCH DAMAGE. 25281526Sandrew * 26281526Sandrew * $FreeBSD: head/sys/dev/agp/agppriv.h 173203 2007-10-30 22:09:16Z jhb $ 27281526Sandrew */ 28281526Sandrew 29281526Sandrew#ifndef _PCI_AGPPRIV_H_ 30281526Sandrew#define _PCI_AGPPRIV_H_ 31281526Sandrew 32281526Sandrew/* 33281526Sandrew * This file *must not* be included by code outside the agp driver itself. 34281526Sandrew */ 35281526Sandrew 36281526Sandrew#include <sys/agpio.h> 37281526Sandrew#include <pci/agpvar.h> 38281526Sandrew 39281526Sandrew#define AGP_DEBUGxx 40281526Sandrew 41281526Sandrew#ifdef AGP_DEBUG 42281526Sandrew#define AGP_DPF(x...) do { \ 43281526Sandrew printf("agp: "); \ 44281526Sandrew printf(##x); \ 45281526Sandrew} while (0) 46281526Sandrew#else 47281526Sandrew#define AGP_DPF(x...) do {} while (0) 48281526Sandrew#endif 49281526Sandrew 50281526Sandrew#include "agp_if.h" 51281526Sandrew 52281526Sandrew/* 53281526Sandrew * Data structure to describe an AGP memory allocation. 54281526Sandrew */ 55281526SandrewTAILQ_HEAD(agp_memory_list, agp_memory); 56281526Sandrewstruct agp_memory { 57281526Sandrew TAILQ_ENTRY(agp_memory) am_link; /* wiring for the tailq */ 58281526Sandrew int am_id; /* unique id for block */ 59281526Sandrew vm_size_t am_size; /* number of bytes allocated */ 60281526Sandrew int am_type; /* chipset specific type */ 61281526Sandrew struct vm_object *am_obj; /* VM object owning pages */ 62281526Sandrew vm_offset_t am_physical; /* bogus hack for i810 */ 63281526Sandrew vm_offset_t am_offset; /* page offset if bound */ 64281526Sandrew int am_is_bound; /* non-zero if bound */ 65281526Sandrew}; 66281526Sandrew 67281526Sandrew/* 68281526Sandrew * All chipset drivers must have this at the start of their softc. 69281526Sandrew */ 70293724Ssmhstruct agp_softc { 71281526Sandrew struct resource *as_aperture; /* location of aperture */ 72281526Sandrew int as_aperture_rid; 73281526Sandrew u_int32_t as_maxmem; /* allocation upper bound */ 74281526Sandrew u_int32_t as_allocated; /* amount allocated */ 75281526Sandrew enum agp_acquire_state as_state; 76281526Sandrew struct agp_memory_list as_memory; /* list of allocated memory */ 77281526Sandrew int as_nextid; /* next memory block id */ 78281526Sandrew int as_isopen; /* user device is open */ 79281526Sandrew struct cdev *as_devnode; /* from make_dev */ 80281526Sandrew struct mtx as_lock; /* lock for access to GATT */ 81281526Sandrew}; 82281526Sandrew 83281526Sandrewstruct agp_gatt { 84281526Sandrew u_int32_t ag_entries; 85281526Sandrew u_int32_t *ag_virtual; 86281526Sandrew vm_offset_t ag_physical; 87281526Sandrew}; 88281526Sandrew 89281526Sandrewvoid agp_flush_cache(void); 90281526Sandrewu_int8_t agp_find_caps(device_t dev); 91281526Sandrewstruct agp_gatt *agp_alloc_gatt(device_t dev); 92281526Sandrewvoid agp_set_aperture_resource(device_t dev, int rid); 93281526Sandrewvoid agp_free_cdev(device_t dev); 94281526Sandrewvoid agp_free_gatt(struct agp_gatt *gatt); 95281526Sandrewvoid agp_free_res(device_t dev); 96int agp_generic_attach(device_t dev); 97int agp_generic_detach(device_t dev); 98int agp_generic_get_aperture(device_t dev); 99int agp_generic_set_aperture(device_t dev, 100 u_int32_t aperture); 101int agp_generic_enable(device_t dev, u_int32_t mode); 102struct agp_memory *agp_generic_alloc_memory(device_t dev, int type, 103 vm_size_t size); 104int agp_generic_free_memory(device_t dev, 105 struct agp_memory *mem); 106int agp_generic_bind_memory(device_t dev, 107 struct agp_memory *mem, 108 vm_offset_t offset); 109int agp_generic_unbind_memory(device_t dev, 110 struct agp_memory *mem); 111 112#endif /* !_PCI_AGPPRIV_H_ */ 113